Integrand size = 20, antiderivative size = 45 \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=-\frac {a^4 c^3}{3 x^3}+\frac {a^3 b c^3}{x^2}-b^4 c^3 x+2 a b^3 c^3 \log (x) \]
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Time = 0.01 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.050, Rules used = {76} \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=-\frac {a^4 c^3}{3 x^3}+\frac {a^3 b c^3}{x^2}+2 a b^3 c^3 \log (x)-b^4 c^3 x \]
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Rule 76
Rubi steps \begin{align*} \text {integral}& = \int \left (-b^4 c^3+\frac {a^4 c^3}{x^4}-\frac {2 a^3 b c^3}{x^3}+\frac {2 a b^3 c^3}{x}\right ) \, dx \\ & = -\frac {a^4 c^3}{3 x^3}+\frac {a^3 b c^3}{x^2}-b^4 c^3 x+2 a b^3 c^3 \log (x) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.82 \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=c^3 \left (-\frac {a^4}{3 x^3}+\frac {a^3 b}{x^2}-b^4 x+2 a b^3 \log (x)\right ) \]
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Time = 0.37 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.80
method | result | size |
default | \(c^{3} \left (-b^{4} x +2 a \,b^{3} \ln \left (x \right )-\frac {a^{4}}{3 x^{3}}+\frac {a^{3} b}{x^{2}}\right )\) | \(36\) |
risch | \(-b^{4} c^{3} x +\frac {a^{3} b \,c^{3} x -\frac {1}{3} a^{4} c^{3}}{x^{3}}+2 a \,b^{3} c^{3} \ln \left (x \right )\) | \(44\) |
norman | \(\frac {a^{3} b \,c^{3} x -\frac {1}{3} a^{4} c^{3}-b^{4} c^{3} x^{4}}{x^{3}}+2 a \,b^{3} c^{3} \ln \left (x \right )\) | \(46\) |
parallelrisch | \(\frac {6 a \,b^{3} c^{3} \ln \left (x \right ) x^{3}-3 b^{4} c^{3} x^{4}+3 a^{3} b \,c^{3} x -a^{4} c^{3}}{3 x^{3}}\) | \(50\) |
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Time = 0.21 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.07 \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=-\frac {3 \, b^{4} c^{3} x^{4} - 6 \, a b^{3} c^{3} x^{3} \log \left (x\right ) - 3 \, a^{3} b c^{3} x + a^{4} c^{3}}{3 \, x^{3}} \]
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Time = 0.10 (sec) , antiderivative size = 44, normalized size of antiderivative = 0.98 \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=2 a b^{3} c^{3} \log {\left (x \right )} - b^{4} c^{3} x - \frac {a^{4} c^{3} - 3 a^{3} b c^{3} x}{3 x^{3}} \]
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none
Time = 0.21 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00 \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=-b^{4} c^{3} x + 2 \, a b^{3} c^{3} \log \left (x\right ) + \frac {3 \, a^{3} b c^{3} x - a^{4} c^{3}}{3 \, x^{3}} \]
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Time = 0.28 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.02 \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=-b^{4} c^{3} x + 2 \, a b^{3} c^{3} \log \left ({\left | x \right |}\right ) + \frac {3 \, a^{3} b c^{3} x - a^{4} c^{3}}{3 \, x^{3}} \]
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Time = 0.05 (sec) , antiderivative size = 38, normalized size of antiderivative = 0.84 \[ \int \frac {(a+b x) (a c-b c x)^3}{x^4} \, dx=-\frac {c^3\,\left (a^4+3\,b^4\,x^4-3\,a^3\,b\,x-6\,a\,b^3\,x^3\,\ln \left (x\right )\right )}{3\,x^3} \]
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